r22472: Commit the start of the DRSUAPI pull replication service.

It doesn't work completely yet because we aren't able to
resolve DNS SRV records. And also we also need a kdc locator
plugin...

But with some hacks the pull replication works fine

metze
(This used to be commit 0dc78f7439c9c786fd8c592960f9669dea40b811)

1 files changed, 110 insertions, 0 deletions

diff --git a/source4/dsdb/repl/drepl_periodic.c b/source4/dsdb/repl/drepl_periodic.c
new file mode 100644
index 0000000000..38e9c710aa
--- /dev/null
+++ b/source4/dsdb/repl/drepl_periodic.c
@@ -0,0 +1,110 @@
+/* 
+   Unix SMB/CIFS mplementation.
+   DSDB replication service periodic handling
+   
+   Copyright (C) Stefan Metzmacher 2007
+    
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+   
+*/
+
+#include "includes.h"
+#include "dsdb/samdb/samdb.h"
+#include "auth/auth.h"
+#include "smbd/service.h"
+#include "lib/events/events.h"
+#include "lib/messaging/irpc.h"
+#include "dsdb/repl/drepl_service.h"
+#include "lib/ldb/include/ldb_errors.h"
+#include "lib/util/dlinklist.h"
+#include "librpc/gen_ndr/ndr_misc.h"
+#include "librpc/gen_ndr/ndr_drsuapi.h"
+#include "librpc/gen_ndr/ndr_drsblobs.h"
+
+static void dreplsrv_periodic_run(struct dreplsrv_service *service);
+
+static void dreplsrv_periodic_handler_te(struct event_context *ev, struct timed_event *te,
+					 struct timeval t, void *ptr)
+{
+	struct dreplsrv_service *service = talloc_get_type(ptr, struct dreplsrv_service);
+	WERROR status;
+
+	service->periodic.te = NULL;
+
+	dreplsrv_periodic_run(service);
+
+	status = dreplsrv_periodic_schedule(service, service->periodic.interval);
+	if (!W_ERROR_IS_OK(status)) {
+		task_server_terminate(service->task, win_errstr(status));
+		return;
+	}
+}
+
+WERROR dreplsrv_periodic_schedule(struct dreplsrv_service *service, uint32_t next_interval)
+{
+	TALLOC_CTX *tmp_mem;
+	struct timed_event *new_te;
+	struct timeval next_time;
+
+	/* prevent looping */
+	if (next_interval == 0) next_interval = 1;
+
+	next_time = timeval_current_ofs(next_interval, 50);
+
+	if (service->periodic.te) {
+		/*
+		 * if the timestamp of the new event is higher,
+		 * as current next we don't need to reschedule
+		 */
+		if (timeval_compare(&next_time, &service->periodic.next_event) > 0) {
+			return WERR_OK;
+		}
+	}
+
+	/* reset the next scheduled timestamp */
+	service->periodic.next_event = next_time;
+
+	new_te = event_add_timed(service->task->event_ctx, service,
+			         service->periodic.next_event,
+			         dreplsrv_periodic_handler_te, service);
+	W_ERROR_HAVE_NO_MEMORY(new_te);
+
+	tmp_mem = talloc_new(service);
+	DEBUG(2,("dreplsrv_periodic_schedule(%u) %sscheduled for: %s\n",
+		next_interval,
+		(service->periodic.te?"re":""),
+		nt_time_string(tmp_mem, timeval_to_nttime(&next_time))));
+	talloc_free(tmp_mem);
+
+	talloc_free(service->periodic.te);
+	service->periodic.te = new_te;
+
+	return WERR_OK;
+}
+
+static void dreplsrv_periodic_run(struct dreplsrv_service *service)
+{
+	TALLOC_CTX *mem_ctx;
+
+	DEBUG(2,("dreplsrv_periodic_run(): schedule pull replication\n"));
+
+	mem_ctx = talloc_new(service);
+	dreplsrv_schedule_pull_replication(service, mem_ctx);
+	talloc_free(mem_ctx);
+
+	DEBUG(2,("dreplsrv_periodic_run(): run pending_ops\n"));
+
+	dreplsrv_run_pending_ops(service);
+}